Three weeks before Election Day, Donald Trump Jr. left the campaign trail and the country to speak at a private dinner in Paris organized by an obscure pro-Russia group that promotes Kremlin foreign policy initiatives and has since nominated Russian President Vladimir Putin for the Nobel Peace Prize.

A key organizer of the event later told reporters she flew to Moscow to brief a senior Russian official about the session.

The White House referred question about the president’s son to the Trump Organization. A spokeswoman for the Trump business did not initially respond to questions from ABC News about why Donald Trump Jr. flew to France for the session during a critical phase of the presidential campaign, who arranged for him to attend, whether he was paid, what was discussed or if anyone vetted the group before he went.